Acta Agriculturae Zhejiangensis ›› 2022, Vol. 34 ›› Issue (7): 1402-1411.DOI: 10.3969/j.issn.1004-1524.2022.07.07

• Animal Science • Previous Articles     Next Articles

Single nucleotide polymorphism screening and bioinformatics analysis of TBC1D7 gene in Guanling cattle

LIU Pengcheng1(), ZHANG Ji1, QIU Ganyuan1, GONG Yu2, LI Xuesong2, LI Wei2, ZHANG Yiyu1, LIU Ruoyu1,*()   

  1. 1. Key Laboratory of Plateau and Mountain Animal Genetics and Breeding, Ministry of Education, College of Animal Science, Guizhou University, Guiyang 550025, China
    2. Guizhou Province Livestock and Poultry Genetic Resources Management Station, Guiyang 550001, China
  • Received:2020-11-17 Online:2022-07-25 Published:2022-07-26
  • Contact: LIU Ruoyu

Abstract:

In order to explore effects of single nucleotide polymorphism(SNPs)of TBC1 domain family,member 7(TBC1D7)gene on cattle growth traits, the Guizhou Guanling cattle was selected as experimental objects to construct DNA pools. After PCR amplification, direct sequencing method was used to detect SNPs of TBC1D7 gene in Guanling cattle. The results showed that the coding region of TBC1D7 gene of Guanling cattle was 882 bp in length, encoding 293 amino acids. An unstable soluble protein was formed. There was no transmembrane region and no signal peptide in the protein encoded by TBC1D7 gene, which is a non-secretory protein. There were six potential N-glycosylation sites in the protein, and the secondary structure was mainly composed of α-helix and random coil. Four synonymous mutation sites were found in the coding sequence (CDS) region of TBC1D7 gene in Guanling cattle, namely, c.402T>C, c.414A>G, c.609C>T and c.648T>C. All the four SNPs resulted in changes in mRNA secondary structure, free energy and gene frequency of TBC1D7 gene in Guanling cattle. In this study, four SNPs loci of TBC1D7 gene in Guanling cattle were screened. The results showed that the polymorphism of TBC1D7 gene in Guanling cattle was abundant, which provided a theoretical basis for further research on the correlation between the variation of TBC1D7 gene and the growth and development traits of Guanling cattle.

Key words: Guanling cattle, TBC1D7 gene, single nucleotide polymorphism, bioinformatics

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